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Round|Natural|GIA

1.51ct I I1 Round Natural Diamond

EX • I/I1 • GIA 5476841644

Certificate GIA 5476841644

Diamond specifications and retailer prices

From £1,939 GBP
HK$20,300 HKD
As of October 31, 2026
Save £2,617 GBP (57%) vs most expensive(unlock to see where)
8 retailers carry this diamond
Most expensive: £4,556 GBP at NZ Jewellers · As of October 30, 2026
View at NZ Jewellers

About this 1.51ct natural round diamond

This 1.51ct natural round sits in the one-and-a-half to two carat band, graded I colour (near-colourless) and I1 clarity (included), with a top-tier cut grade and certified by GIA 5476841644. Listed at 8 retailers as of October 30, 2026, with prices from £1,939 to £4,556, a £2,617 spread on the same certified stone. NZ Jewellers lists it at £4,556. Compare the cross-retailer prices above before buying. The same certified stone often varies 15 to 40% across stores.

The 4Cs

1.51
Carat
I
Colour
I1
Clarity
Excellent
Cut

Specifications

CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
Crown angle35.5°
Pavilion angle41°
OriginNatural
Grading LabGIA
CertificateGIA 5476841644
Dimensions7.33 × 7.38 × 4.54 mm
L/W Ratio1.01
Star length50%
Lower girdle80%
Top View
7.33 mm7.38 mm1.51 ctI / I1
OriginNatural
CutExcellent
PolishExcellent
SymmetryExcellent
FluorescenceNone
CertificateGIA 5476841644
Side View
Table 59.0%Crown 35.5°Girdle: MED-STKPavilion 41°Culet: NoneDepth 61.7%

Caratlytics Score

How it works →
A
Excellent
Excellent quality and great value
Unlock full score analysis
See the detailed 0 to 100 score with Quality, Value, Certification & Market breakdown

Price History

Last verified: Oct 31
Current: £4,556 GBP|Low: £1,930 GBP|High: £4,621 GBP|Avg: £2,875 GBP|-1.4%
NZ Jewellers
Retailer 2
Retailer 3
Retailer 4
Retailer 5
Retailer 6
Retailer 7
Retailer 8
Retailer 9
Retailer 10
Retailer 11
October 31, 2026
Retailer 2£1,939 GBP
Retailer 9£2,327 GBP
Retailer 10£2,393 GBP
Retailer 5£2,615 GBP
Retailer 6£2,615 GBP
Retailer 8£2,716 GBP
Retailer 7£3,017 GBP
Retailer 3£3,052 GBP
Retailer 4£3,062 GBP
Retailer 11£3,172 GBP
NZ Jewellers£4,556 GBP

31 data points across 11 retailers

8 retailers£1,939 GBP to £4,556 GBP

A
Cheapest Retailer
-
£1,939 GBP
HK$20,300 HKD
A
Retailer 2
-
£2,327 GBP
$3,118 USD
View
A
Retailer 3
-
£2,615 GBP
$3,504 USD
View
A
Retailer 4
-
£2,615 GBP
$3,504 USD
View
B+
Retailer 5
-
£2,716 GBP
$3,639 USD
View
B+
Retailer 6
-
£3,017 GBP
$4,043 USD
View
B+
Retailer 7
-
£3,062 GBP
€3,907 EUR
View
Most Expensive
B
NZ Jewellers
7c46195e-cddd-400e-bebb-7382ef01dc0a · Oct 30
£4,556 GBP
$6,105 USD
View
7 more retailers have this diamond
Prices start from £1,939 GBPSave up to £2,617 GBP

Carat Hunter is not affiliated with, endorsed by, or sponsored by any retailer listed. Retailer information is from publicly available sources and may not be current. Verify details directly with the retailer before purchasing. Return terms as we hold them. Check the retailer's own returns page before you buy.

A
1.51ct Round
£1,939 GBP